LANGMaster COURSES are adapted from the popular Heinemann Readers. These textbooks are designed for English students from beginner to intermediate level. They provide an authentic English context and help improve the fluency and accuracy of your English.Collins COBUILD Student's Dictionary - The only completely recorded multimedia monolingual English dictionary. You can listen to selected text read by native English speakers. It helps you practice your pronunciation. All the headwords including examples of usage, inflected and derived forms are recorded by professional speakers.